Escalating the confrontation with Trump, they also sent a subpoena to the White House on Friday for documents that have a bearing on the phone conversation in which Trump asked Zelensky to investigate the business dealings of former Vice President and 2020 Democratic candidate Joe Biden's son Hunter with a gas company.
A vote would force those Democrats who have been reluctant to support the impeachment to take a public stand.
But China's Foreign Minister Wang Yi said on Friday that his county will not interfere in the internal affairs of the US, according to the Global Times.
--IANS al/ksk